中国激光, 2007, 34 (4): 588, 网络出版: 2007-04-25
用于牙科植入体的激光快速成形纯钛性能研究
Properties of Pure Titanium for Dental Implants Fabricated by Rapid Laser Forming
激光技术 纯钛植入体 激光快速成形 机械性能 细胞毒性 laser technique pure titanium implants laser rapid forming mechanical properties cytotoxicity
摘要
利用工业用纯钛粉末、激光快速成形(LRF)系统和优化的成形工艺参数,制成了纯钛的测试试样,根据国家标准GB/T 13810-1997和GB/T 16886.5-2002分别进行力学测试和细胞毒性实验。力学测试结果为抗拉强度475 MPa,屈服强度383 MPa,延伸率27%,弹性模量97.54 GPa,维氏显微硬度188.4～206.3；利用小鼠结缔组织成纤维细胞(L-929细胞)进行体外细胞毒性的研究,结果表明激光快速成形纯钛细胞毒性为0级。激光快速成形纯钛试样满足外科植入物纯钛板材室温力学性能国家标准和体外细胞毒性实验标准。
Abstract
In the present experiments,pure titanium specimens fabricated by laser rapid forming (LRF) have been investigated, and based on the national standards (GB/T 13810-1997, GB/T 16886.5-2002), the mechanics properties, microstructure and cytotoxicity experiments were tested. The results show that tensile strength is 475 MPa, yield strength is 383 MPa, elongation is 27%, Vickers hardness is 188.4～206.3, and Young′s modulus is 97.54 GPa. In vitro experiment, the cytotoxicity of LRF titanium specimens is grade 0. These data confirm that the LRF pure titanium can be efficient for surgical implants.
朱娟芳, 高勃, 王忠义, 张风英, 陈静, 杨海欧. 用于牙科植入体的激光快速成形纯钛性能研究[J]. 中国激光, 2007, 34(4): 588. 朱娟芳, 高勃, 王忠义, 张风英, 陈静, 杨海欧. Properties of Pure Titanium for Dental Implants Fabricated by Rapid Laser Forming[J]. Chinese Journal of Lasers, 2007, 34(4): 588.
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